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G. H. KNOWLTON 80 B. F. MEYER. SHUTTLE BOX OPERATING MECHANISM FOR LOOMS.

No. 503,642. Patented Aug. 15,1893.

(No Model.)

W/ TNESSES I L/EN'TUF-VS' 6M 1M 4; Z 1 y 21 3' .3 SheetS-Shee52. G. H. KNOWLTON 85 B. P. MEYER. SHUTTLE BOX OPERATING MECHANISM FOR LOOMS- N0 503,542. Patented Aug. 15, 1893.

(No Model.)

i I l gli a! il I 'IL"'V W/ g/N vim w m. M BY UNITED STATES PATENT Orricn.

CHARLES H. KNOWLTON AND BENJAMIN F. MEYER, OF CAMDEN, NEW J EB- SEY, ASSIGNORS TO THE M. A. FURBUSH & SON MACHINE COMPANY, OF

SAME PLACE.

SHUTTLE-BOX-OPERATING MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 503,542, dated August 15, 1893.

Application filed April 22, 1893. Serial No. 471,424. (No model.)

To all whom it near/y concern:

Be it known that we, CHARLES H. KNOWL- TON and BENJAMIN F. ME ER, both citizens of the United States, residing at Camden, in

the county of Camden and State of New Jersey, have invented certain new and useful Improvements in Shuttle-Box-Operating Mechanism for Looms, of which the following is a specification.

Our invention relates to looms and more particularly to mechanism constituting a shuttle box motion especially adapted for use in the fabrication of ingrain carpets, but also susceptible of beneficial employment in the production of other fabrics.

The principal objects of our invention are first, to provide a simple, durable, efficient and comparatively inexpensive shuttle box motion for looms; second, to provide shuttle box operating cams with shifting mechanism actuated by one of the revolving shafts of the loom in such manner that when the loom is reversed or run back in order to replace a broken weft or for any other purpose, the shuttle boxes are automatically called up in reverse order; third, to provide such shifting mechanism with spring controlled interlocking arms adapted to move independently of each other in order to avoid breakage or accident in case the movements of the parts should for any reason become improperly timed; and fourth, to construct the shifting cam in such manner that its working surface may be readily altered in order to change the order of operation of the shuttle boxes without disconnecting or otherwise disturbing the shifting mechanism.

Our invention consists of a shuttle-box'motion for looms, comprising a lever for calling whereof one is in range of the lever and the other is adapted to be moved into and out of range thereof, a positively driven screw-cam, and spring controlled interlocking rockerarms, whereof one engages the screw-cam and the other the movable-cam.

Our invention further consists of a shuttlebox motion for looms, comprising a lever for calling up the shuttle-boxes, a rotating shaft provided with a fixed cam in range of said lever, a sectional cam, whereof the hub member is positively driven and the other members of the same are detachably applied thereto, a screw-cam, and rocker-arms, whereof one engages the screw -cam and the other the hub member of the sectional-cam; and our invention further consists of the improvements in shuttle box motions and mechanism hereinafter described and claimed.

The nature and scope of ourinvention will be more fully understood from the following description taken in connection with the accompanying drawings forming part hereof; and in which- Figure 1, is a side elevational view of portions of a loom, showing a shuttle-box motion and mechanism therefor embodying features of our invention in application to the loom. Fig. 2, is a front elevational view of certain of the parts shown in Fig. 1. Figs. 3 and 4, are respectively side and front elevational views of the rotating cams, whereof one comprises detachable sections. Figs. 5 and 6,are views illustrating a modified form of screwcam and dart adapted for use in connection with the shuttle box motion illustrated in Fig. 1; and Fig. 7, is a perspective view illustrating the spring controlled key or clutch in position for permitting the rocker-arms to work independently of each other.

In the drawings a and at, are portions of the frame-work of a loom provided with positively driven shafts b and c, geared together through the instrumentality of spur-wheels b and c, in such manner that the shaft 12, makes four revolutions while the shaft 0 is making one.

d, is a counter'shaft driven by the shaft 0, through the instrumentality of spur-wheels c and d, in such manner that the counter-shaft (1, makes one revolution, while the shaft Z), is making eight revolutions. In the present instance the shaft Z), is the main-shaft of the loom, so that the counter-shaft (Z, makes one revolution for every eight shots of weft, and this arrangement is especially useful in the production of ingrain carpet fabrics.

e, is a lever pivoted at one extremity to the frame-work a, and provided at its free extremity with a buckle e.

f, are a series of shuttle boxes, in the present instance five, mounted in a frame f, as illustrated in Fig. 2, afforded a range of up and down movement on or in ways or guides f hinged near the base of the loom, as indicated at f in Fig. 2.

g, is a traveler provided with a socket g, and afforded a range of movement in guides g'-, carried by a shaft g located at the lower portion of the front of the loom.

7L, is a rod supported at one of its extremities by a lugf' projecting from the frame f, and having its other extremity afforded a range of play in the socket g.

s, is a spiral spring encircling the rod 71, and having one of its extremities in contact with the lug f, and the other of its extremities in contact with a collar h, attached to the rod h.

2', is a chain having one of its extremities attached to the traveler g, and the other of its extremities attached to the buckle e, by means of a screw i, and nuts 2' so that the length of the chain may be readily adjusted in order to regulate the position of the shutt le-boxes.

g, is a loop or guard carried by the traveler g, and adapted for the accommodation of the chain 1'. When the lever e, is rocked upward the chain 1?, causes the traveler g, to be shifted in a similar direction, and this motion of the traveler is imparted to the frame f, and shuttle-boxes through the intervention of the springs. Ordinarily the springs, does not yield. However, if the frame f, should from any cause become jammed the spring 5, will yield and thus prevent accidental injury to or breakage of the moving parts. When the lever c, is rocked downward the framef, shuttle-boxes f, and traveler g, are permitted to descend under the influence of gravity.

7', is a cam keyed to the shaft 0, and provided with high and low portions adapted to contact with a roller 6 carried by the lever e, in 01 der to rock the latter, and thus bring the shuttle-boxes l, 2, 3 and at into operative position in the-following order, to-wit:1, 2, l, 3 as illustrated in Fig. 2 and by the operation of the cam this order would be repeated indefinitely.

It, is a sectional-cam having the hub member 7t, thereof loosely mounted on the shaft 0, and provided with a groove for the reception of the pins of a shipper-fork Z, pivoted to the frame-work a, of the loom.

j, are pins projecting from the face of the cam j, through openings in the hub member 7a, of the cam it. These pins serve to impart rotary motion to the cam 75, and also afford the same freedom of movement in the direction of the length of the shaft 0.

m, is a rocker-arm provided with sidewise projecting eyes m and m and with a yoke m journaled to a shaft m, supported bylugs d projecting from the frame a. The free extremity of the rocker-arm m, is connected with the shipper-fork Z, by a link m.

n, is a rocker-arm journaled between the arms of the yoke m to the shaft m, and provided with a dart 11, running in the groove of a screw-cam 0, keyed or otherwise secured to the counter-shaft d.

p, is a key having its shank afforded a range of movement in the eyes m and m and squared as at 1), Fig. '7, in order to engage a corresponding opening in the eye m, whereby accidental turning of the key is obviated.

s, is a spiral spring adapted to bear upon the under side of the eye m and upon the shoulder formed at the squared portion of the key, and thus solicit the key downward. The lower extremity of the keyp, is provided with a curved depending lip 19 as illustrated in Fig. 7, that is normally maintained by the influence of the spring 5, in position as shown in Figs. 1 and 2 between the pins or projections 7L2, carried by the rocker-arm n. This key 1), by engaging the pins or projections n serves to normally lock the roeker-arms m and 01, together, so that they afford means for transmitting motion from the screw-cam 0, to the hub member 7c, of the cam 7t. However, in case of accident or in the event of the occurrence of the motions of the loom out of proper time, the force of the spring 3', is overcome, the key 1), is shifted upward and the rocker-arms m and n, are permitted to move independently of each other, as shown in Fig. 7, whereby breakage of the parts is avoided. The high or operative sections 75* and 75, as illustrated in Fig. 3, of the sectional-cam 7., are bolted or otherwise secured to the hub member k, with which they are adapted to be shifted by means of the screw-cam 0, rocker-arnis n and m, and shipper Z, into range of the roller 6 thus causing the lever e, to call up the shuttle-box 5, instead of the shuttleboxes 1 and 4, as would occur by the ordinary operation of the cam j. The single screw-cam 0, shown in Figs. 1 and 2, is adapted to bring the sectional cam 70, into range of the roller 6 once for every eight shots, so that the shuttle-boX 5, is called up instead of the shuttleboxes 1 and 4, by the high or operative sections and la once after each eight shots or picks of the loom. The double screw-cam 0,

and dart 11 shown in Figs. 5 and 6, are adapted to shift the cam in, once during each two revolutions of the shaft (Z, so that in this instance sixteen shots or picks of the loom may occur before the shuttle-box 5, is called up by the cam k, instead of the shuttle-boxes 1 and IIO l, being called up by the cam j. One of the high or operative sections or may be dispensed with, in order to cause the shuttle box 5, to be substituted for only one of the shuttle-boxes l and 4, as maybe required, and in this connection it may be remarked that the high or operative sections k or 70 may be readily detached from and applied to the hub member 70, by simply loosening the nuts 7t" and k from the bolts 7t and It, and removing such section from the hub member 7t, and without disconnecting or otherwise disturbin g the rocker-arms n and m, and their accessories.

The mode of operation of the hereinbefore described shuttle box motion is as follows: The positively driven shaft 1), causes the various well known parts of the loom to shed the warp, work the picker-sticks and beat up the wefts in the usual and well understood manner, and also imparts rotary motion to the shaft 0. The rotation of the shaft 0, is imparted to the cam j, and the high parts 1, 2, 4E and 3, of the latter, contact with the roller 6 and thus cause the lever e, to call up theshuttle boxes 1, 2, 3 and 4c in the following order, to-Witz-l, 2, 4E and 3 as illustrated in Fig. 2. The rotation of the shaft 0, also imparts motion to the counter-shaft d, and

screw-cam o, and the latter operates, after a certain number of picks, for example, eight or sixteen, through the intervention of the rocker-arms n and m, link m and shipper Z, to shift the cam 7t, into range of the roller 2 and the high or operative section or sections 5, of the cam 75, engage the roller 0 and thus cause the lever e, to call up the shuttle-box 5, instead of the shuttle boxes 1 or 4, or both of them according as one or two high sections are employed.

The loom may be run in a reverse direction to that above described in order to replace a broken weft or for any other desired purpose and the shuttle-boxes automatically called up in reverse order to that hereinabove mentioned by the reverse movement of the devices and mechanism connected therewith as hereinabove described and as will be readily well understood from the accompanying drawings taken in connect-ion with the foregoing description of our invention.

It will be obvious to those skilled in the art to which our invention appertains that modifications may be made in details without departing from the spirit thereof, hence we do not limit ourselves to the precise construction and arrangement of parts hereinbefore explained and illustrated in the drawings.

Having thus described the nature and objects of our invention, What we claim as new, and desire to secure by Letters Patent, is-

1.. A shuttle-box motion for looms, comprising a lever for calling up shuttle-boxes, a main shaft, a cam-shaft rotated by said main=- shaft through the intervention of spur-wheels, a cam keyed to said camshaft and provided with high and low portions adapted to contact with a roller carried by said lever, a movable-cam having the hub member mounted on said shaft, spur gearing, a counter shaft driven by said cam-shaft through the intervention of said spur gearing, a positively driven screw-cam mounted on said countershaft, two jointed rocker-arms and connections between the same, and means connecting'one of said arms and the said movablecam, whereby said movable-cam is operated from the said screw-cam, substantially as and for the purposes set forth.

2. Ashuttle-box motion for looms, compris ing a lever for calling up shuttle-boxes, rotating cams, whereof one is in range of the lever and the other is adapted to be moved into and out of range thereof, main and cam shafts, a counter-shaft driven by the cam-shaft through the intervention of spur-gearing, a pivotal shipper fork for shifting the movablecam, a positively driven screw-cam, rockerarms whereof one is provided with a dart engaging the screw-cam, and a link interposed between the shipper fork and the other rockerarm, substantially as and for the purposes set forth.

3. A sh uttle-box motion for looms, comprising a lever for calling up shuttle-boxes, a main-shaft, a cam-shaft rotated by said mainshaft, through the intervention of spur-gearing, a cam keyed to the camshaft and disposed in range of the lever, a second movable cam on said cam-shaft, pins connected with the first cam, and extending through openings in the second-cam to permit of the rotary motion thereof and to afford a freedom of movement of the same in the direction of the length of said camshaft, a counter-shaft driven by said cam-shaft through the intervention of spur-gearing, a screw-cam mounted on the counter-shaft, a shipper fork for shifting the second cam, rocker-arms adapted to impart motion from the screw-cam to the sec ond cam, a dart applied to one of said rockerarms and engaging the screw-cam, and alink interposed between the other rocker-arm and the shipper fork, substantially as and for the purposes set forth.

4:. A shuttle-box motion for looms, comprising a lever for calling up shuttle-boxes, rotating cams, whereof one is in range of the lever and the other is adapted to be moved into and out of range thereof, a positively driven screw-cam, and spring controlled interlocking rocker-arms whereof one engages the screwcam and the other shifts the movable-cam, substantially as and for the purposes set forth.

5. A shuttle-box motion for looms, comprising a lever for calling up shuttle-boxes, rotating-cams whereof one is in range of the lever and the other is adapted to be moved into and out of range thereof, a positively driven screw-cam, pivotal rocker-arms interposed between the screw cam and movable-cam and provided respectively with a spring controlled key and pins or projections, substantially as and for the purposes set forth.

0. A shuttle-box motion for looms, comprising a lever for calling up sl1uttle-boxes,rotating-cams, whereof one is in range of the lever and the other is adapted to be moved into and out of range thereof, a positively driven screw-cam, pivotal rockerarms interposed between the screw cam and movable-cam and provided respectively with eyes and pins or projections, a key working in said eyes and provided with a dependinglip adapted to engage said pins or projections, and a spring for soliciting said lip into engagement with said pins, substantially as and for the purposes set forth.

7. A shuttle-box motion for looms, comprising a lever for calling up shuttleboxes, rotating cams, whereof one is adapted to be moved into and out of range of said lever, a positively driven screw-cam, pivotal rocker-arms interposed between the screw cam and movable-cams and provided respectively with eyes and pins or projections, a key having a squareshank engaging a corresponding opening in one of said eyes and having a depending lip adapted to engage said pins or projections, and a spring engaging the other eye and also the key at the square portion thereof, substantially as and for the purposes set forth.

8. A shuttle-box motion for looms, comprising a lever for calling up shuttle-boxes, rotating cams, whereof one is in range of said lever and the other is adapted to be moved into and out of range thereof, a positively driven screw-cam, a shipper-forl-z, a shaft supported by lugs projecting from the main-frame, a rocker-arm provided with eyes and with a yoke journaled to said shaft and the free extremity of said rockenarm connected with said shipper-fork by means of a link, second rocker-arm journaled between the arms of said yoke to said shaft and provided with pins or projections, and a spring controlled key carried by the eyes of the first rockerarm and adapted to engage the pins or projections of the second rocker-arm, substantially as and for the purposes set forth.

9. A shuttle-box motion for looms, comprising a lever for calling up sl1uttle-boxes,rotating-cams, whereof one isin range of the lever and the other is adapted to be moved into and out of range thereof, a shipper-fork for shifting the movable-cam, a positively driven screw-cam, pivotal rocker-arms, whereof one is provided with a dart engaging the screwcam and whereof the otheris connected with the shipper by a link, and a spring controlled key carried by one of said arms and adapted to engage pins or projections on the other arm, substantially as and for the purposes Set forth.

10. A shuttle-box motion for looms, comprising a frame having a lug,aseries of shuttle-boxes mounted in said frame which is afforded a range of up and down movement, a traveler working in ways and provided with a socket, a rod working in an opening in the lug of said frame and guided by said socket, a collar attached to said rod and disposed in ran e of the traveler, a springinterposcd between ihe collar and frame, achain, a pivotal link attached to the traveler by said chain, rotating-cams, whereof one is in range of said lever and the other is adapted to be moved into and out of range thereof, a positively driven screw-cam, and spring controlled interlocking rocker-arn1s interposed between the screw cam and movable-cam, substantially as and for the purposes set forth.

11. A shuttle-bot: motion for looms, comprising a frame having a lug,a series of shuttle boxes mounted in said frame which is afforded a range of up and down movement, a traveler working in ways and provided with a socket, a rod working in an opening in the lug attached to said frame and guided by the socket, a collar attached to said rod and dis posed in range of the traveler,a spring interposed between the collar and frame, a chain, a pivotal link attached to the traveler by said chain, a buckle for said chain, rotating-cams, whereof one is in range of said lever and the other is adapted to be moved into and out of range thereof, a positively driven screw-cam, and spring controlled interlocking arms interposed between the screw cam and movable-cam, substantially as and for the purposes set forth.

In testimony whereof wehave hereunto set our signatures in the presence of two subscribing witnesses.

CHARLES II. KNOWLTON. BENJAMIN MEYER.

\Vitnesses:

THOMAS M. SMITH, RICHARD C. MAXWELL. 

